I wrote telegram bot, which worked till september. Now I recovered this project and it’s not working. I’ve read telegram bots are now blocked and “SSH Workspace” is an alternative. Where can I create SSH Workspace? Is it free or only a premium feature?

SSH workspaces are a premium feature on c9.io. Alternatively, you can use AWS Cloud9, which provides a limited number of SSH workspaces for free, but does require credit card verification to create an account (unless you are a student, in which case you can create an AWS Educate Starter Account).